364.2 Snippet_Proper mass
Relatively speaking.
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Astronomy Without A Telescope
the e-book is now available:
- The book is also now available through the iBooks app. Here is a quick guide to getting the book onto i-devices, such as an iPad.
- This is the Amazon version for Kindle. It will also work on devices (e.g. iPads) with a Kindle app.
- This is the .epub version which will work on other e-book devices without Kindle functionality.
Category Dear CA
364. Dear Cheap Astronomy – Episode 133
Shining a light.
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363. Dear Cheap Astronomy – Episode 132
Bringing it home.
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362.1 Snippet_Entropic Gravity
Don’t fall for it.
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361.1 Snippet_Smart phone science
Pocket tricorder.
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